Do not use exact string match for errno output

unitTests/test_futils.cpp

@@ -42,28 +42,8 @@ TEST(strError, returnSuccessAfterClosingFile)
     std::string tmpFile("tmp.dat");
     std::ofstream auxFile(tmpFile.c_str());
     auxFile.close();
-    bool useExactString{true};
-#if   defined(_WIN32) || defined(__CYGWIN__) || defined(__MINGW__) || defined(__MSYS__)
-    const char * expectedString = "No error (errno = 0)";
-#elif defined(__APPLE__)
-    const char * expectedString = "Undefined error: 0 (errno = 0)";
-#elif defined(__sun__)
-    const char * expectedString = "Error 0 (errno = 0)";
-#elif defined(__FreeBSD__)
-    const char * expectedString = "No error: 0 (errno = 0)";
-#elif defined(__NetBSD__)
-    const char * expectedString = "Undefined error: 0 (errno = 0)";
-#else
-    // On Alpine we get 'No error information (errno = 0)' instead of 'Success (errno = 0)'
-    const char * expectedString = "(errno = 0)";
-    useExactString = false;
-#endif
     std::remove(tmpFile.c_str());
-    if (useExactString) {
-      ASSERT_STREQ(expectedString, strError().c_str());
-    } else {
-      ASSERT_TRUE(strError().find(expectedString) != std::string::npos);
-    }
+    ASSERT_TRUE(strError().find("(errno = 0)") != std::string::npos);
 }
 
 TEST(strError, returnNoSuchFileOrDirectoryWhenTryingToOpenNonExistingFile)
@@ -75,29 +55,7 @@ TEST(strError, returnNoSuchFileOrDirectoryWhenTryingToOpenNonExistingFile)
 TEST(strError, doNotRecognizeUnknownError)
 {
     errno = 9999;
-    bool useExactString{true};
-#if   defined(__MINGW__) || defined(__MSYS__) || defined(__CYGWIN__)
-    const char * expectedString = "Unknown error 9999 (errno = 9999)";
-#elif defined(_WIN32)
-    const char * expectedString = "Unknown error (errno = 9999)";
-#elif defined(__APPLE__)
-    const char * expectedString = "Unknown error: 9999 (errno = 9999)";
-#elif defined(__sun__)
-    const char * expectedString = "Unknown error (errno = 9999)";
-#elif defined(__FreeBSD__)
-    const char * expectedString = "Unknown error: 9999 (errno = 9999)";
-#elif defined(__NetBSD__)
-    const char * expectedString = "Unknown error: 9999 (errno = 9999)";
-#else
-    // On Alpine we get 'No error information (errno = 9999)' instead of 'Unknown error 9999 (errno = 9999)'
-    const char * expectedString = "(errno = 9999)";
-    useExactString = false;
-#endif
-    if (useExactString) {
-      ASSERT_STREQ(expectedString, strError().c_str());
-    } else {
-      ASSERT_TRUE(strError().find(expectedString) != std::string::npos);
-    }
+    ASSERT_TRUE(strError().find("(errno = 9999)") != std::string::npos);
 }
 
 TEST(getEnv, getsDefaultValueWhenExpectedEnvVariableDoesNotExist)